mailbuur.dk
Last scanned: 2026-09-01 01:02:40  ·  584ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   43ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
🌍 A Records
🌍
No A records found
📧 MX Records3 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s scanner01.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
20 3600s scanner02.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
30 3600s scanner03.resennet.dk 193.32.65.29 scanner01.resennet.dk AS3292 TDC Holding A/S
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   149ms
TXT Record
v=spf1 include:_spf.resennet.dk -all
✉️ SPF
PolicyRecord (mailbuur.dk)
-all (hard fail) v=spf1 include:_spf.resennet.dk -all
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC91ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsresolution failed: ncache nxrrset
🏷️ SOA0ms
FieldValue
Serial2025090801
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
43ms
A
37ms
MX
48ms
AAAA
40ms
TXT
149ms
CAA
50ms
HTTPS
41ms
TLSA
63ms
SOA
0ms
MTA-STS
62ms
DNSSEC
91ms
SRV
69ms
Total
584ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-09-01 01:02:40 584ms 2 NS 0 A 3 MX 🔒 Secure View
2026-06-18 22:27:00 545ms 2 NS 0 A 3 MX 🔒 Secure View
2026-06-17 14:06:52 1638ms 2 NS 0 A 3 MX 🔒 Secure View
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